Which range of link-local addresses can be assigned to an IPv6-enabled interface?
In IPv6, link-local addresses are used to facilitate communication within a single network segment or link.
These addresses are automatically generated by devices and do not need any configuration from a network administrator. The range of link-local addresses in IPv6 is fe80::/10.
To break it down further, in binary representation, the prefix fe80:: has the following structure:
1111 1110 10
The first 10 bits, ‘1111 1110’, represent the prefix FE80 in hexadecimal notation. The next 54 bits are set to zeros, allowing room for the interface identifier.
The interface identifier, which is unique to each device, is automatically generated using the device’s MAC address or other means on the network interface. This ensures that each device on a particular network segment has a unique link-local address.
Therefore, any IPv6-enabled interface can have a link-local address within the fe80::/10 range.
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